Type-writing machine.



N. H. ANDERSON. TYPE WRITING MACHINE.

APPLIOATION FILED APR. 1a, 1910.

1120,660, mente@ Dee. 15, 1914.

3 SHEETS-SHEET 1.

N. H. ANDERSON. TYPE WRITING MACHINE.

APPLIUATION FILED APR.13, 1910.

1,41 20,660., Patented Dec. 15, 1914.

3 SHEETS-SHEET 2.

l l l Y nvr/Emma N. H. ANDERSON. TYPE WRITING MACHINE.

APPLICATION FILED APB. 1a, 1910.

1120,660 Patented'Dec. 15, 1914;

3 SHEETS-SHEET 3.

WITNESSES:

lmerits ot .this invention, i igure entran etarras-.adress ersten.

NILS H. ANDERSN, 0F MIDDLETOWN. CONNECTICUT, 'ASSGNOR, BY MESNE ASSEGN- MENTS, 'I'O TI-IE NOISELESS TYEWRITER CIKPANY, OF CUT, A. CORPORATION OF CONNECTICUT,

MIDDLETOWN, CONNECTI- TYPE-WRITING BIACHINE.

Specification of Letters Patent.

Patented Dec. 15, 1914.

Application filed April 13, 1910. Serial No. 555,132.

To-aZZ whom it may concern:

Be it known that l, Nits ll. xnnsob, a citizen of the United States, residing at Middletown, in the county of Middlesex and State ot Connecticut, have invented certain new Vand useful Improvements in Typel/l'irrtn Machines, ot' which the Jfollowing is a tu clear, and exact description, such as will enable others skilled in the art to which it apport-ins to make and use the same.

This invention relates to typewriting machines, and with regard to the more specific features thereof', to line lock and margin release mechanism therefor.

One ot the objects ot the present invention is to provide ay mechanism of the above character which will bc practical and elticient in operation.

Another object is to provide an apparatus ot' the above nature which will be simple in construction and arrangement of parts and cheap to manufacture.

.l further object is to provide a device ot the above .nature which will co-act with the parts built tor and subjected to the greatest strain, thereby being more reliable in its action, and having a less tendency to get out ot order or break and strain the weaker parts.

-k further object is to provide a mechanism ot' the above character adapted to relieve the strain imposed on the locking memberby actuation when not in the proper relative position to enable it to move to a locking position.

.l further object is to provide a construction ot the above nature which will be substantially noiselcss in its operation, and in which the movable parts are returned to normal position in a silent manner without impact or concussion.

Other objects will be in partobvious and in part pointed out herein-alter.

The invention accordingly consists in the features of construction, combinations of elements and arrangement ot' parts which wil-l be .exemplified in the construction hereinafter set forth, and the scope of the application ot which will be indicated in the following claims.

lin the accompanying drawings, wherein is yshown one .et the many possible embodi- 1 is a side `Xersely eleration ot' part of a typewriting machine sulticient to illustrate the invention as applied thereto; Fig. is a plan view ol" the same, partly in section; and Fig. 3 is a rear elevation, part-ly in section, with parts removed for the sake of clearness.

Similar reference characters refer to similar parts throughout the several views of the drawings.

ln the accompanying drawings, the invention is shown as applied tothat form ot the machine known as the Noiseless typewriter, but it is, ot course, to be understood that the invention herein shown and described is not -to be limited to its present application for it is obvious that the construction conld be applied to many classes ot typewriting nracl-iines without material alterations.

Referring to these drawings in detail, l denotes a base of the trame ot' a typewriting machine, on the upper part of which is mounted a reciprocating carriage i adapted to have a sliding' contact with a rear abutment 3, or what is familiar-ly known as the center tie, whereby the carriage may be adjusted relatively to the end of the normal stroke of the type carriers to accommodate the varying number of sheets ot paper carried thereby, all in a well known manner. In this center tie 3 is placed a line lock lever l pivotally mountedin vertically disposed trunnions carried by a block (3 secured to a shaft 7 mounted in bearing' lugs S on the center tie. @ne end ot this lever lprojects upwardly within the center tie 3, and has a forwardly bent portion 9 adapted to be engaged by stops l() or ll on the carriage l when moved in opposite directions. 'lhese stops l0 and 1l may be ot any suitable form and construction movable with the carriage and capable ot longitudinal adjustment alongr a rail 12 as desired, each being provided with a plane tace 13 adapted to co-act with the part 9 ot the line lock lever al, and a beveled Jface 14 against which thc line lock lever co-acts in returning' to normal position, as will be more i'ullv hereinafter explained. The opposite endvl of the line lock lever -l extends forwai illy in the frame and is held between two pivoted jaws 1G and 17 mounted on a transdisposed longitudinally movable locking bar 18. These jaws 16 .and l7 are 21 on the line locking bar.

1 end held adjacent the sides of the line lock lever by means of a connecting spring 19 and their movement toward each other is limited by projecting lugs 20 engaging pins This locking bar isV supported at each end from ears 22 projecting from the inner side of the frame, having a stud 23--c'o-acting with a longitudinal-slot 24 in the bar. On one ear 22 is mounted a pin 25 to which is attached one of a spring 26', secured at the other end to a lug on the locking bar 18 for holding the same in normal or unlocked position,

as is clearlyshown in Fig. 3. The ends 27v of the locking bar 18 are bent at right angles thereto and provided with pads 28 for insuring a noiseless movement in either direction.

From the lower side of the locking bar depend tw'o hooks 29 and 30 adapted, when the bar is moved to the left (Fig. 3), to engage under arms or projections 31 and 32 rigidly'secured near opposite ends of a universal rock shaft 33 mounted on pivot points 34 projecting from the inner sides of the frame. Pivotally suspended from the ends of these arms are connecting links 35 and 36 supporting a universal bar 37 on which rest key levers 38. The universal bar and key levers may be of any well known construction, the former having a suitable pad 39 on the upper surface thereof to prevent noise, and the latter moving inv a comb 40 at the forward end, and held against a knife' edge 41 at the rear end. It is thus seen that the locking means directly engages the arms 31 and 32 supporting the universal bar on which all of the strain is applied when operating Aagainst the line lock mechanism.

Referring. now to the margin release mechanism, the shaft 7 carrying the block 6 and trunnions 5 in which the line lock lever -4 is mounted, extends to one side of the frame and has rigidly secured thereon an arm 42 having a rounded end 43 adapted to engagea flat portion 44 of a key lever 45 pivoted on a stud 46 and held in normal position by means of a spring 47. It is thus seen that when the key lever 45 is depressed, rotating about the pivot stud 46 on which `it is mounted, the rear end thereof will be raised to rotate 'the shaft 7 against the tension of a spring 48 thereon, thereby carrying the line lock lever 4 away from the path of travel `of the stops, permitting the carriage to move farther toward the end of the frameto receive additional printing. On

l releasing the key 45, the various springs 26,

l47 and 48 will tend to restore'the parts to normal position.

The operation of this apparatus is substantially as follows: Assuming the machine` to be in operation andthe carriage traveling from right` to left in its normal course of operation, the plain surface `13 of the line in Fig. 2. The opposite end of this lever coacts with the jaw 16 pivotally mounted on the locking bar 18 and as the spring 19 is stronger than the spring 26 between the pin' 25 and the locking bar, the locking bar will be carried to the left a suiicient distance to permit the hooks29 and 30 carried thereby to engage with the arms .31 and 32 on the universal rock shaft. As these arms support the universalv bar, a movement of the latter is prevented' on striking of a key and the machine is thereby locked against further operation until the margin release mechanism is actuated by ressing the margin release key.' The shaf 7 on which the trunnion for the line lock lever is mounted is rotated so as to carry the line lock lever rearwardly out ofthe path of the stop 11. As soon as the end of the line lock lever escapes from the plain surface 13 of the line stop it is swung laterally into the plane of normal position by means of the spring 26 on the locking bar engaging the opposite end 15 thereof, and the spring 48 on the shaft 7 ropossible path of travel.

Should the machine -be operated under such conditions that the universal bar was depressed at the moment ofcontact between the margin stop and the upper end of the line leverf'so that a lateral movement,k of the locking bar 18 was prevented by the reason of the fact that the lower part of the hooks 29 and 30 carried thereby engaged the arms 31 and 32, the spring 19 holding the jaws 16 and 17 adjacent the opposite end" of the /line lock bar would yield, thereby preventing any strain upon the movable parts. As soon, however, as the universal bar was 'released the arms 31 and 32 carried by the universal rock shaft would be returned to normal position, and the spring 19 acting on the jaw 16 would tend to carry the locking lever 18 into position to engage the hooks carried thereby with the arms. thereby locking the machine against further operation. The' lower part of the h'ooks 29 and 30'and the upper part of thel arms 31 and 32 are rounded to permit'easy action. The margin stop and is for the purpose of determining the marginal line at the left of the sheet, will 'i not, o f course, actuate the line locking mechawifi-ill.l

. .ann-

lthe margin, such as a line number, for eX- ample, the margin release lvcv 45 may be depressed to carry the line locking lever out of engagement with the margin stop l0, wherebyithe carriage can be given a further movement to the right. The opposite end 'l5 of the line lock lever norn; ily engages the spring held jaw 'iT which yields under the movement of the lever when engaged by the C'arriageon its return to a line commencing position to' prevent breakage or springing of the parts.

It is thus seen that this invention provides for a practical and eilicient mechanism of the character above described accomplishing, among others, the objects and possessing the advantages herein set forth. lt is to be noted that the arrangement of the springs, pads, and yielding parts throughout the mechanism permits a silent operation of the device Without in any way affecting its ellivciency or quickness of operation.

Ags many. changes could be made in the above construction and many apparently widely different embodiments of this invention could be made Without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Having described my invention. what l claim as new and desire to secure by Letters Patent is:

l. in a typeivriting machine, in combination, a plurality of finger actuated members, a universal bar mechanism in operative relation thereto. a carriage, a margin stop carried thereby, and a pivoted member positioned fore and aft of the machine adapted to be engaged by said stop at its rear end and operate upon the universal bar mechanism at the forward end to prevent operation thereof as the finger actuated members are moved.

Q. in a typeivriting machine, in combination, a. frame, a carriage movable relatively thereto, a universal rock shaft, a universal bar operatively associated therewith positioned beneath the lcy levers at the forward part of the machine, and means for locking the universal bar against movement, including a longitudinally disposed pivotally supported bar adapted to be engaged at one end by the carriage ro prevent a movement of the universal bar by its other end.

3. n a typewriting machine, in combination, a carriage. an adjustable stop carried thereby, a key-lever, a member adapted to be actuated at each impression thereof,

lever extending fore and aft of the machine from a point behind the carriage to a point adjacent the member actuated by the keylever, and a part adapted to be moved transversely ot' the machine by said lever to lock said member and key-lever against movement.

4. in a typevvriting machine, in combination, a reciprocating carriage, a rock shaft, arms supported by said rock shaft, a longitudinally movable bar transversely mounted on the machine adapted to engage With said arms, and means positioned fore and aft of the machine through the central part thereof adapted to be actuated by the carriage at one end and adapted to act-nate said movable bar near its other end to lock said arms and rock shaft against movement.

In a typewriting machine, in combination, a carriage, a relatively fixed member' centrally disposed on the frame of the machine and positioned behind said carriage, a universal rock shaft, and intermediate mechanism between thel carriage and said rock shaft partially supported by said member adapted when engaged by the former to lock the latter against movement.

G. In a typewriting machine, in combination, a carriage, an abutment positioned behind said carriage, a universal rock shaft, a

projection on said shaft, means adapted to engage said projection, and intermediate mechanism partially supported on said abutment adapted tol be actuated by said carriage on engagement therewith to lock said rock shaft against movement.

'7. In a-typewriting machine, in combination, a reciprocating carriage, a movable member, locking means therefor adapted to be moved into engagement with the same when in normal position, means for actuating said locking means, and spring held pivotally mounted means mounted on said locking member adapted to yield and relieve the strain on said locking member when the movable member is in a position to obstruct its movement and prevent its locking action.

ln a typewriting machine, in combination, a reciprocating carriage, a universal rock shaft, arms on said rock shaft, a universal bar supported by said arms, a locking member adapted to engage said arms when in normal position, intery cdiate means between said locking membeiii and the carriage for actuating the former .When engaged by the latter, and pivoted spring held arms on said locking member engaged by said intermediate mechanism adapted to yield -When movement of the locking member is obstructed as when the arms are out of normal position.

9. In a typcivriting machine, in combination. a reciprocating carriage, a rock shaft, means adapted to lock said rock shaft again movement when the carriage reaches A about one set of pivots to actuate said locking means and adapted to be rotated about the other set 'of pivots to release said locking means.

l1. In a typewriting machine, in combination, a reciprocating carriage, a movable member, a longitudinally movable lock bar .for said member, intermediate mechanism between said carriage and said bar including a universally mounted bar adapted to be rotated about one axis for actuating the locking mechanism and about another axis for releasing the same.

l2. In a typewriting machine, in combination, a reciprocating carriage, a plurality of stops thereon, a movable member, locking means for said member, including an endwise movable bar and va pivotally mounted lever at right angles thereto having one end engaging said bar, mechanism adapted.

to be engaged by said stops to actuate said locking means When the carriage reaches one end of a line,`and mechanism for releasing said looking means whereby the earriage may be given a' further movement.

13. In a typewriting machine, in combination, a reciprocating carriage, a movable member, locking means therefor, means adapted to actuate saidlocking means .when engaged by said carriage, said means including a universally pivoted bar, an arm projecting from the pivot bearings, and key operated means adapted to engage said arm to move the bearings whereby the locking means is released.

l-l. In a typewriting machine, i'n combi-5 nation, a reciprocating carriage, a movable member, locking means therefor, means adapted to actuate said locking means, i11- cluding a universally pivoted longitudinally disposed lever, an arm projecting l5. In a typewriting machine, in combi' v nation, a reciprocating carriage, a movable member, locking means therefor, means adapted to aetuate said locking means, in

cluding a universally pivoted longitudinally disposed lever, an arm projecting from the bearings thereof, and means for returning said bar into normal position.

16. In a typewriting machine, in combination, a reciprocating carriage, a stop thereon having oppositely disposed plain and beveled faces, a movable member, locking means therefor, means adapted to be engaged by the plain face of said mar in stop to actuate said locking means, an adapted to4 move said actuating means laterally away from said stop for releasing said locking means. l

17. In a typewriting machine, in combination, a reciprocating carriage, a margin stop thereon having oppositely disposed plain and beveled faces,'a movable member, locking means therefor, means adapted to be engaged by the plain face of said margin stop to actuate said locking means, means adapted to move said actuating means laterally away from said margin stop for releasing said looking means, and means for furthermoving said aetuating'means at right angles to its irst movement whereby it engages the inclined face of said margin stop and returns it to normal position.

1S. In a typewriting machine, in combination, a reciprocating carriage, a stop thereon having oppositely disposed plain and beveled faces, a movable member, locking means therefor, means adapted to be engaged by the plain face of said stop to actuate said locking means, means for further movingsaid actuatingmeans at right angles to its first movement whereby it engages the vinclined face of said stop and returns it to normal position, and means for limiting its latter movement.

In testimony whereof I aiiX my signature, in the presence of two witnesses.

NILS H. ANDERSON. Witnesses: 4

EDWARD'L, C. CLARK.

MARY KENFICK.

means p y 

